package es.ats.codington.festival.servlets;

import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.imageio.ImageIO;

import es.ats.codington.festival.domain.Image;
import es.ats.codington.festival.services.EventService;
import es.ats.codington.festival.services.ImageService;

public class ProcessEventImageServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
	
	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		HttpSession sesion = request.getSession(false);
		if (sesion == null){
			RequestDispatcher requestDispatcher = request.getRequestDispatcher("/");
	        requestDispatcher.forward(request, response);
		}
		else{
			
			try{
				EventService es=new EventService();
				ImageService is=new ImageService();
				response.setContentType("image/jpeg");
				OutputStream out = response.getOutputStream();
				int eventId=Integer.parseInt(request.getParameter("eventid"));
				int photoId=es.checkPhotoById(eventId);
				Image img=is.checkPhotoById(photoId);
				ImageIO.write(img.getPhoto(), img.getType(), out);
				out.close();
			}
			catch (Exception e) {
				request.setAttribute("error", "Something is wrong with your data. Please, try it again in a few minits.");
				RequestDispatcher rd = request.getRequestDispatcher("jsp/error.jsp");
				rd.forward(request,response);
			}
			
		}
		
	
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		//do nothing
	}
	
}
